JPH08135800A - Cooler for cooling mechanical seal - Google Patents
Cooler for cooling mechanical sealInfo
- Publication number
- JPH08135800A JPH08135800A JP30549594A JP30549594A JPH08135800A JP H08135800 A JPH08135800 A JP H08135800A JP 30549594 A JP30549594 A JP 30549594A JP 30549594 A JP30549594 A JP 30549594A JP H08135800 A JPH08135800 A JP H08135800A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- cooler
- transfer tube
- mechanical seal
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、化学工業用機械やポン
プ、その他の各種機械の回転軸部に設けられたメカニカ
ルシールのフラッシング流体が高温の場合に、フラッシ
ングラインに設置して上記フラッシング流体を冷却する
のに使用されるメカニカルシール冷却用クーラーに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to install the above flushing fluid in a flushing line when the flushing fluid of a mechanical seal provided on the rotating shaft of a chemical industrial machine, a pump or other various machines has a high temperature. The present invention relates to a cooler for cooling a mechanical seal used for cooling an engine.
【０００２】[0002]
【従来の技術】従来、例えば化学工業用機械等の回転軸
部に設けられたメカニカルシールのフラッシング流体の
液温が高くなる場合、クーラーの密封されたシェル内に
設けられたチューブに高温のフラッシング流体を流すと
共に、チューブ外のシェル内に冷却水を導いて、上記チ
ューブを介して高温のフラッシング流体と冷却水との間
で熱交換を行い、フラッシング流体の液温を下げてメカ
ニカルシールの冷却を行っている。2. Description of the Related Art Conventionally, for example, when a liquid temperature of a flushing fluid of a mechanical seal provided on a rotary shaft portion of a chemical industrial machine or the like becomes high, a high temperature flushing is performed on a tube provided inside a sealed shell of a cooler. While flowing the fluid, guide the cooling water into the shell outside the tube to exchange heat between the hot flushing fluid and the cooling water through the tube, lower the liquid temperature of the flushing fluid and cool the mechanical seal. It is carried out.
【０００３】[0003]
【発明が解決しようとする課題】ところが、現在、石油
化学や精製工場をはじめ各工場で使用している冷却水
は、クーリングタワーで工場内に配水される循環水を使
用しているため、防錆剤やＳｉ，Ｃａ等の硬質物を含ん
でいる場合が多く、またクーラーのチューブの入口と出
口では温度差が大であるため、チューブ外周面に多量の
上記硬質物が付着し、堆積する。その結果、クーラーの
熱効率が低下し、高温のフラッシング流体を十分に冷却
させることができず、メカニカルシールのトラブルにつ
ながるといった問題があった。また、クーラー内のチュ
ーブ外周面に付着、堆積した多量の硬質物を、定期的に
除去するにも手間がかかるといった問題があった。[Problems to be Solved by the Invention] However, since the cooling water currently used in each plant, such as petrochemical and refinery plants, uses circulating water distributed in the plant by a cooling tower, it is rust-proof. In many cases, agents and hard materials such as Si and Ca are contained, and since the temperature difference between the inlet and outlet of the tube of the cooler is large, a large amount of the above hard materials adheres and deposits on the outer peripheral surface of the tube. As a result, there is a problem that the thermal efficiency of the cooler is reduced, the high temperature flushing fluid cannot be sufficiently cooled, and the mechanical seal is in trouble. Further, there is a problem in that it takes time and effort to regularly remove a large amount of hard material that has adhered to and accumulated on the outer peripheral surface of the tube in the cooler.
【０００４】本発明は上記のような問題点に鑑みて開発
されたものであり、その目的とするところは、伝熱管へ
の硬質物の付着を防止して熱効率の低下を防ぎ、メカニ
カルシールへの悪影響を無くすると共に、内部掃除も手
間をかけずに簡単にできるようにしたメカニカルシール
冷却用クーラーを提供することにある。The present invention has been developed in view of the above problems, and an object of the present invention is to prevent a hard material from adhering to a heat transfer tube to prevent a decrease in thermal efficiency and to provide a mechanical seal. Another object of the present invention is to provide a cooler for cooling a mechanical seal that eliminates the adverse effects of the above and can easily perform the internal cleaning without any trouble.
【０００５】[0005]
【課題を解決するための手段】そこで、本発明は上記目
的を達成するために、次のような構成にしてある。すな
わち、請求項１に記載の本発明のメカニカルシール冷却
用クーラーは、冷却水の流入口と流出口を形成した密封
筒体内に、高温の流体を流動させる伝熱管を設ける共に
この伝熱管の両端を上記密封筒体外に設け、この伝熱管
の一端から伝熱管内に流入する高温の流体を、上記冷却
水によって冷却し、伝熱管の他端から密封筒体外に排出
するようにしたクーラーにおいて、上記伝熱管の外周面
に所定の厚さのフッ素樹脂をコーテングした構成であ
る。In order to achieve the above object, the present invention has the following construction. That is, in the mechanical seal cooling cooler of the present invention as set forth in claim 1, a heat transfer tube for flowing a high-temperature fluid is provided in both ends of the heat transfer tube in a sealed cylindrical body having an inlet and an outlet of cooling water. Is provided outside the sealed cylinder, the high temperature fluid flowing into the heat transfer tube from one end of the heat transfer tube is cooled by the cooling water, and is discharged from the other end of the heat transfer tube to the outside of the sealed cylinder, The heat transfer tube has an outer peripheral surface coated with a fluororesin having a predetermined thickness.
【０００６】また、請求項２に記載の本発明のメカニカ
ルシール冷却用クーラーは、密封筒体の内面、及び密封
筒体内に内設するバッフルの外面を所定の厚さのフッ素
樹脂でコーテングした請求項１に記載の構成である。In the mechanical seal cooling cooler according to the second aspect of the present invention, the inner surface of the sealed cylinder and the outer surface of the baffle provided in the sealed cylinder are coated with a fluororesin having a predetermined thickness. The configuration is in item 1.
【０００７】尚、フッ素樹脂のコーティングの厚みは数
十μｍ程度が好ましい。また、フッ素樹脂としては、好
ましくはポリ四フッ化エチレン、四フッ化エチレンー六
フッ化プロピレン共重合体、エチレンー四フッ化エチレ
ン共重合体、四フッ化エチレンーパーフルオロアルキル
ビニルエーテル共重合体等が使用される。The thickness of the fluororesin coating is preferably several tens of μm. The fluororesin is preferably polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, ethylene-tetrafluoroethylene copolymer, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, or the like. used.
【０００８】[0008]
【作用】上記請求項１に記載の本発明のメカニカルシー
ル冷却用クーラーでは、伝熱管の外周面に所定の厚さの
フッ素樹脂をコーテングすることによって、伝熱管の外
周面への硬質物の付着を防止でき、伝熱管内の高温流体
と、伝熱管外の冷却水との間での熱交換を効率良く行う
ことができる。また、定期的に行うクーラー内の掃除の
時も簡単に行うことができる。In the mechanical seal cooling cooler of the present invention as set forth in claim 1, hard material adheres to the outer peripheral surface of the heat transfer tube by coating the outer peripheral surface of the heat transfer tube with a fluororesin having a predetermined thickness. The heat exchange between the high temperature fluid inside the heat transfer tube and the cooling water outside the heat transfer tube can be efficiently performed. In addition, it is possible to easily perform the cleaning inside the cooler that is regularly performed.
【０００９】また、上記請求項２に記載の本発明のメカ
ニカルシール冷却用クーラーでは、伝熱管の外周面と共
に、密封筒体の内面、及びバッフルの外面にも所定の厚
さのフッ素樹脂をコーテングしてあるので、伝熱管内の
高温流体と、伝熱管外の冷却水との間での熱交換は、上
記請求項１のクーラーと同様に熱交換を効率良く行うこ
とができる。また、密封筒体の内面、及びバッフルの外
面にもフッ素樹脂をコーテングしてあるので、クーラー
内の付着物を低減でき、掃除を簡単に行うことができ
る。Further, in the mechanical seal cooling cooler of the present invention as set forth in claim 2, a fluorine resin having a predetermined thickness is coated not only on the outer peripheral surface of the heat transfer tube but also on the inner surface of the sealed cylindrical body and the outer surface of the baffle. Therefore, the heat exchange between the high-temperature fluid inside the heat transfer tube and the cooling water outside the heat transfer tube can be efficiently performed as in the cooler according to claim 1. Further, since the fluororesin is coated on the inner surface of the sealed cylindrical body and the outer surface of the baffle, the deposits in the cooler can be reduced and the cleaning can be easily performed.
【００１０】[0010]
【実施例】以下、本発明の実施例を図に基づいて説明す
る。図１〜図３に示すメカニカルシール冷却用クーラー
１は、冷却水の流入口２と流出口３を形成した密封筒体
４と、高温の流体を流動させる伝熱管５と、バッフル６
とによって形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A mechanical seal cooling cooler 1 shown in FIGS. 1 to 3 includes a sealed cylindrical body 4 having an inlet 2 and an outlet 3 of cooling water, a heat transfer tube 5 for flowing a high-temperature fluid, and a baffle 6
It is formed by and.
【００１１】すなわち、上記密封筒体４の一端は円形側
板７によって封じられ、他端はボルト・ナット８によっ
て固着されたフランジ９によって封じられている。上記
円形側板７の中央部には流入口２が設けられ、この流入
口２に連通する小筒体１０が円形側板７に一端を固定し
て密封筒体４内に設けてある。この小筒体１０の他端と
フランジ９との間には一定間隔が設けられている。That is, one end of the sealed cylinder 4 is sealed by the circular side plate 7, and the other end is sealed by the flange 9 fixed by the bolt and nut 8. An inflow port 2 is provided at the center of the circular side plate 7, and a small cylinder 10 communicating with the inflow port 2 is provided in the sealed cylindrical body 4 with one end fixed to the circular side plate 7. A fixed interval is provided between the other end of the small tubular body 10 and the flange 9.
【００１２】この小筒体１０の外側には一定の間隔を以
て、バッフル６が一端をフランジ９に固定して密封筒体
４内に設けてある。このバッフル６の他端と円形側板７
との間には一定間隔が設けられている。A baffle 6 having one end fixed to a flange 9 is provided inside the sealed cylindrical body 4 at a constant interval outside the small cylindrical body 10. The other end of the baffle 6 and the circular side plate 7
A fixed interval is provided between the and.
【００１３】そして高温の流体を流動させる伝熱管５
が、上記の小筒体１０とバッフル６との間に回巻するよ
うにして設けてある。伝熱管５の材質は、銅、ステンレ
ス、又はＳＴＧＰ等である。この伝熱管５の両端５ａ、
５ｂは、上記フランジ９を穿設して設けた流体入口部１
１と流体出口部１２にそれぞれ連結してある。１３はセ
ットプレート、１４はプラグである。A heat transfer tube 5 for flowing a high temperature fluid
Is wound between the small cylinder 10 and the baffle 6 so as to be wound. The material of the heat transfer tube 5 is copper, stainless steel, STGP, or the like. Both ends 5a of this heat transfer tube 5,
5b is a fluid inlet portion 1 provided by piercing the flange 9.
1 and the fluid outlet 12 are connected to each other. Reference numeral 13 is a set plate, and 14 is a plug.
【００１４】上記のようにして配設される伝熱管５の外
周面１４には、厚みを数十μｍ位にしてフッ素樹脂１５
がコーティングしてある。また、密封筒体４の内面（円
形側板７とフランジ９の内面も含む）とバッフル６の外
周面にも厚さ数十μｍ位にしてフッ素樹脂がコーティン
グしてある。On the outer peripheral surface 14 of the heat transfer tube 5 arranged as described above, a fluororesin 15 having a thickness of several tens of μm is provided.
Is coated. Further, the inner surface of the sealed cylindrical body 4 (including the inner surfaces of the circular side plate 7 and the flange 9) and the outer peripheral surface of the baffle 6 are also coated with a fluororesin to a thickness of about several tens of μm.
【００１５】上記のメカニカルシール冷却用クーラー１
は、各種機械の回転軸部に設けられたメカニカルシール
のフラッシング流体の温度が高くなる場合に、フラッシ
ングラインに設置される。高温のフラッシング流体は、
このクーラー１の流体入口部１１から伝熱管５に流入
し、冷却水は流入口２から小筒体１０を通って密封筒体
４内に流入する。この冷却水と伝熱管５内の高温のフラ
ッシング流体との間で熱交換が行われ、フラッシング流
体は冷却されて流体出口部１２から排出されメカニカル
シール（図示省略）側へ送られる。また、密封筒体４内
に流入した冷却水は流出口３から流出する。Cooler 1 for cooling the above mechanical seal
Is installed in the flushing line when the temperature of the flushing fluid of the mechanical seal provided on the rotary shaft of various machines becomes high. The hot flushing fluid is
From the fluid inlet 11 of the cooler 1, the cooling water flows into the heat transfer tube 5, and the cooling water flows from the inlet 2 through the small cylinder 10 into the sealed cylinder 4. Heat exchange is performed between this cooling water and the high temperature flushing fluid in the heat transfer tube 5, the flushing fluid is cooled, discharged from the fluid outlet portion 12 and sent to the mechanical seal (not shown) side. Further, the cooling water that has flowed into the sealed cylindrical body 4 flows out from the outflow port 3.
【００１６】上記のようにしてフラッシング流体を冷却
するメカニカルシール冷却用クーラー１では、フラッシ
ング流体が流れる伝熱管５の外周面１４や、密封筒体４
の内面、バッフル６の外面にフッ素樹脂１５をコーティ
ングしてあるので、冷却水に含まれる防錆剤やＳｉ，Ｃ
ａ等の硬質物が、上記伝熱管５の外周面１４や、密封筒
体４の内面及びバッフル６の外面に付着するのを防止す
ることができる。したがってクーラー１の熱効率の低下
を極力防止することができる。In the mechanical seal cooling cooler 1 for cooling the flushing fluid as described above, the outer peripheral surface 14 of the heat transfer tube 5 in which the flushing fluid flows and the sealed cylindrical body 4 are provided.
Since the fluororesin 15 is coated on the inner surface of the baffle 6 and the outer surface of the baffle 6, rust preventive agents and Si, C contained in the cooling water
It is possible to prevent a hard material such as a from adhering to the outer peripheral surface 14 of the heat transfer tube 5, the inner surface of the sealed cylindrical body 4, and the outer surface of the baffle 6. Therefore, the decrease in the thermal efficiency of the cooler 1 can be prevented as much as possible.
【００１７】[0017]
【発明の効果】上記説明でも明らかなように請求項１に
記載の本発明のメカニカルシール冷却用クーラーでは、
高温流体を流動する伝熱管の外周面に所定の厚さのフッ
素樹脂をコーテングしてあるので、冷却水に含まれる硬
質物が伝熱管の外周面に付着するのを防止でき、伝熱管
内の高温流体と伝熱管外に導かれた冷却水との間で、長
期間、効率良く熱交換を行って高温流体を冷却すること
ができる。したがって、メカニカルシールに高温流体に
よる悪影響が及ぶといったことない。また、上記したよ
うに冷却水に含まれる硬質物が伝熱管に付着するのを防
止できるので、定期的に行うクーラー内の掃除時も手間
どることなく容易に行うことができる。As is apparent from the above description, in the mechanical seal cooling cooler of the present invention according to claim 1,
Since the outer peripheral surface of the heat transfer tube that flows the high temperature fluid is coated with a fluororesin of a predetermined thickness, it is possible to prevent hard substances contained in the cooling water from adhering to the outer peripheral surface of the heat transfer tube, It is possible to efficiently exchange heat between the high temperature fluid and the cooling water guided to the outside of the heat transfer tube for a long period of time to cool the high temperature fluid. Therefore, the mechanical seal is not adversely affected by the high temperature fluid. Further, as described above, it is possible to prevent the hard material contained in the cooling water from adhering to the heat transfer tube, so that it is possible to easily perform the periodical cleaning of the cooler without trouble.
【００１８】また、請求項２に記載の本発明のメカニカ
ルシール冷却用クーラーでは、伝熱管の外周面と共に、
密封筒体の内面、及びバッフルの外面にも所定の厚さの
フッ素樹脂をコーテングしてあるので、上記請求項１の
クーラーと同様に、伝熱管内の高温流体と伝熱管外の冷
却水との間での熱交換を効率良く行うことができる。更
に密封筒体の内面、及びバッフルの外面にもフッ素樹脂
をコーテングしてあるので、クーラー内の掃除も更に容
易に短時間で行うことができる。Further, in the mechanical seal cooling cooler of the present invention according to claim 2, together with the outer peripheral surface of the heat transfer tube,
Since the inner surface of the hermetically sealed cylinder and the outer surface of the baffle are coated with a fluororesin having a predetermined thickness, the high temperature fluid inside the heat transfer tube and the cooling water outside the heat transfer tube are provided in the same manner as the cooler according to claim 1. The heat exchange between the two can be efficiently performed. Further, since the fluororesin is coated on the inner surface of the sealed cylinder and the outer surface of the baffle, the inside of the cooler can be cleaned more easily and in a shorter time.
【図１】本発明に係る一実施例のクーラの縦断面図であ
る。FIG. 1 is a vertical sectional view of a cooler according to an embodiment of the present invention.
【図２】本発明に係る一実施例のクーラの側面図であ
る。FIG. 2 is a side view of a cooler according to an embodiment of the present invention.
【図３】フッ素樹脂をコーティングした伝熱管の拡大横
断面の説明図である。FIG. 3 is an explanatory view of an enlarged cross section of a heat transfer tube coated with a fluororesin.
１ メカニカルシール冷却用クーラー ２ 流入口 ３ 流出口 ４ 密封筒体 ５ 伝熱管 ６ バッフル １４ 伝熱管の外周面 １５ フッ素樹脂 1 Cooler for mechanical seal cooling 2 Inlet 3 Outlet 4 Sealed cylinder 5 Heat transfer tube 6 Baffle 14 Outer peripheral surface of heat transfer tube 15 Fluororesin
Claims (2)
筒体内に、高温の流体を流動させる伝熱管を設ける共に
この伝熱管の両端を上記密封筒体外に配設し、この伝熱
管の一端から伝熱管内に流入する高温の流体を、上記冷
却水によって冷却し伝熱管の他端から密封筒体外に排出
するようにしたクーラーにおいて、上記伝熱管の外周面
にフッ素樹脂をコーテングしたことを特徴とするメカニ
カルシール冷却用クーラー。1. A heat transfer tube for flowing a high temperature fluid is provided in a sealed cylinder having an inlet and an outlet of cooling water, and both ends of the heat transfer tube are arranged outside the sealed cylinder, and the heat transfer tube is provided. In a cooler in which a high temperature fluid flowing into the heat transfer tube from one end of the heat transfer tube is cooled by the cooling water and discharged from the other end of the heat transfer tube to the outside of the sealed cylindrical body, a fluororesin is coated on the outer peripheral surface of the heat transfer tube. A cooler for cooling mechanical seals.
するバッフルの外面をフッ素樹脂でコーテングした請求
項１に記載のメカニカルシール冷却用クーラー。2. The cooler for cooling a mechanical seal according to claim 1, wherein the inner surface of the sealed cylinder and the outer surface of the baffle provided inside the sealed cylinder are coated with a fluororesin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30549594A JPH08135800A (en) | 1994-11-14 | 1994-11-14 | Cooler for cooling mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30549594A JPH08135800A (en) | 1994-11-14 | 1994-11-14 | Cooler for cooling mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08135800A true JPH08135800A (en) | 1996-05-31 |
Family
ID=17945857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30549594A Pending JPH08135800A (en) | 1994-11-14 | 1994-11-14 | Cooler for cooling mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08135800A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100308881B1 (en) * | 1999-05-24 | 2001-09-29 | 손재익 | Method of Coating Fluoride Resin with Tubes and Assembling Structure Thereof |
| JP2012021569A (en) * | 2010-07-14 | 2012-02-02 | Mitsubishi Heavy Ind Ltd | Cooler for shaft seal device |
| WO2012153569A1 (en) * | 2011-05-07 | 2012-11-15 | イーグル工業株式会社 | Cooler for mechanical seal |
| JP2017040463A (en) * | 2015-08-21 | 2017-02-23 | イーグル工業株式会社 | Cooler for mechanical seal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187603A (en) * | 1975-01-31 | 1976-07-31 | Tokyo Shibaura Electric Co | |
| JPS60121500A (en) * | 1983-12-06 | 1985-06-28 | 日本電気株式会社 | Frequency analysis parameter feeding circuit for voice synthesizer |
| JPS6228570A (en) * | 1985-07-31 | 1987-02-06 | Hitachi Ltd | Cooling device for multistage mechanical seal |
-
1994
- 1994-11-14 JP JP30549594A patent/JPH08135800A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187603A (en) * | 1975-01-31 | 1976-07-31 | Tokyo Shibaura Electric Co | |
| JPS60121500A (en) * | 1983-12-06 | 1985-06-28 | 日本電気株式会社 | Frequency analysis parameter feeding circuit for voice synthesizer |
| JPS6228570A (en) * | 1985-07-31 | 1987-02-06 | Hitachi Ltd | Cooling device for multistage mechanical seal |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100308881B1 (en) * | 1999-05-24 | 2001-09-29 | 손재익 | Method of Coating Fluoride Resin with Tubes and Assembling Structure Thereof |
| JP2012021569A (en) * | 2010-07-14 | 2012-02-02 | Mitsubishi Heavy Ind Ltd | Cooler for shaft seal device |
| WO2012153569A1 (en) * | 2011-05-07 | 2012-11-15 | イーグル工業株式会社 | Cooler for mechanical seal |
| JPWO2012153569A1 (en) * | 2011-05-07 | 2014-07-31 | イーグル工業株式会社 | Cooler for mechanical seal |
| JP5807926B2 (en) * | 2011-05-07 | 2015-11-10 | イーグル工業株式会社 | Cooler for mechanical seal |
| JP2017040463A (en) * | 2015-08-21 | 2017-02-23 | イーグル工業株式会社 | Cooler for mechanical seal |
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